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Cheap flights from London Heathrow Airport to Boston from £350

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 25/8. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BOS
24 Jun — 1 Jul1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London Heathrow to Boston Logan Intl are usually found in September or February, booked 57 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

Cheap flight deals from Heathrow to Boston

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Boston
Explore the most affordable flight options available from Heathrow to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 May 2026.

Tue 16/609:55
LHR
-
BOS
1 stop16h 05m
LEVEL
Tue 23/622:50
BOS
-
LHR
1 stop29h 20m
LEVEL
Deal found 24/5£501
Thu 25/610:05
LHR
-
BOS
Nonstop7h 30m
British Airways
Mon 29/621:50
BOS
-
LHR
Nonstop6h 45m
British Airways
Deal found 20/5£502
Thu 25/610:05
LHR
-
BOS
Nonstop7h 30m
British Airways
Thu 9/719:40
BOS
-
LHR
Nonstop6h 30m
British Airways
Deal found 25/5£503
Tue 29/907:05
LHR
-
BOS
2 stops13h 30m
Scandinavian Airlines
Tue 6/1017:40
BOS
-
LHR
1 stop10h 40m
Scandinavian Airlines
Deal found 25/5£504
Fri 26/619:15
LHR
-
BOS
1 stop28h 15m
Virgin Atlantic
Sun 5/706:06
BOS
-
LHR
1 stop19h 39m
Virgin Atlantic
Deal found 20/5£504
Sat 17/1015:35
LHR
-
BOS
2 stops29h 00m
Scandinavian Airlines
Tue 27/1018:35
BOS
-
LHR
1 stop17h 25m
Scandinavian Airlines
Deal found 25/5£505
Fri 11/907:05
LHR
-
BOS
2 stops13h 30m
Scandinavian Airlines
Mon 14/917:40
BOS
-
LHR
1 stop19h 00m
Scandinavian Airlines
Deal found 23/5£506
Thu 25/610:05
LHR
-
BOS
Nonstop7h 30m
British Airways
Wed 15/717:46
BOS
-
LHR
1 stop9h 44m
British Airways
Deal found 25/5£507
Sun 19/709:55
LHR
-
BOS
1 stop16h 50m
LEVEL
Thu 23/723:35
BOS
-
LHR
1 stop15h 30m
LEVEL
Deal found 21/5£507
Thu 6/809:55
LHR
-
BOS
1 stop11h 42m
Delta
Mon 10/819:10
BOS
-
LHR
Nonstop6h 35m
Delta
Deal found 20/5£508
Wed 19/810:05
LHR
-
BOS
Nonstop7h 35m
Finnair
Sun 30/817:45
BOS
-
LHR
1 stop12h 30m
Finnair
Deal found 25/5£509

Find flight deals from Heathrow to Boston

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Boston (BOS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 25 May 2026.

Round-trip from

£501

One-way from

£350

Popular in

June

Cheapest in

September

Average price

£492

Good round-trip deal

£560 or less

Good one-way deal

£411 or less
British Airways
  • British Airways
  • 19/6-21/6
  • Nonstop
  • 14h 20m total
  • London to Boston
Search Deals
25/8
  • 25/8
  • 2 total stops
  • 35h 05m total
  • London to Boston
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£28 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£6 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 2026
Search Deals
Price to beat on a round-trip flight from London Heathrow to Boston Logan Intl.
Search Deals
Price to beat on a one-way flight from London Heathrow to Boston Logan Intl.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow to Boston that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 25 May 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Boston that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Wed 12/8

09:15-19:30

1 stop15h 15m

Boston Logan Intl

Tue 18/8

06:00-06:50

1 stop19h 50m

£511

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Wed 7/10

17:35-20:05

Nonstop7h 30m

Boston Logan Intl

Wed 21/10

15:31-07:20

1 stop10h 49m

£513

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Mon 24/8

14:30-17:00

Nonstop7h 30m

Boston Logan Intl

Mon 31/8

18:26-09:10

1 stop9h 44m

£513

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Mon 21/9

07:30-16:48

2 stops14h 18m

Boston Logan Intl

Mon 28/9

14:21-06:55

1 stop11h 34m

£515

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Sat 20/6

14:10-23:01

1 stop13h 51m

Boston Logan Intl

Tue 30/6

20:10-08:00

Nonstop6h 50m

£520

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Mon 22/6

14:10-23:01

1 stop13h 51m

Boston Logan Intl

Tue 7/7

07:25-18:55

Nonstop6h 30m

£521

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Fri 19/6

14:30-17:00

Nonstop7h 30m

Boston Logan Intl

Sat 27/6

21:50-09:35

Nonstop6h 45m

£530
Fastest return journey

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Sat 4/7

10:05-12:35

Nonstop7h 30m

Boston Logan Intl

Tue 14/7

19:40-07:10

Nonstop6h 30m

£530

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Tue 23/6

10:05-12:35

Nonstop7h 30m

Boston Logan Intl

Tue 30/6

19:35-07:10

Nonstop6h 35m

£530

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Tue 7/7

12:10-19:55

1 stop12h 45m

Boston Logan Intl

Tue 14/7

17:44-10:25

1 stop11h 41m

£543

Flights are sorted by cheapest return flights first.

Deals found on 22/5

Showing 1-10 of 23 resultsSorted by cheapest first
1
2
3

Best time to book a flight from Heathrow to Boston

Have a flexible travel schedule? Discover the best time to fly to Boston from Heathrow with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Boston

How far ahead should I book a flight from London Heathrow Airport to Boston?

The best time to book flights from London Heathrow Airport to Boston is 56 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from London Heathrow Airport to Boston?

Currently, September is the cheapest month in which you can book a flight from London Heathrow Airport to Boston (average of £405). Flying from London Heathrow Airport to Boston in June is currently the most expensive (average of £558). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from LHR to BOS?

Find hourly flight availability from Heathrow to Boston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 25 May 2026.

When flying from London Heathrow Airport to Boston, the time of day you fly usually plays a role in the price. Save by searching for a flight at midday, which can drop the price by up to 24% versus a flight in the evening.

What is the cheapest day to fly from London Heathrow Airport to Boston?

Use this chart to determine the cheapest time to fly return from Heathrow to Boston. Price data was last updated on 16 May 2026.

Travellers seeking maximum savings on their London Heathrow Airport to Boston flight should consider departing on Wednesday at midday when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost for a return flight from London Heathrow Airport to Boston?

Reviews of airlines servicing Boston

Get insights into the airlines that provide service to Boston. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Boston. Reviews last updated 25 May 2026.
Get a feel of what it's like to fly with KLM,Virgin Atlantic, andAir France from London Heathrow Airport to Boston by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,521 reviews
Check prices

Entertainment

7.2

Comfort

7.7

Overall

7.8

Crew

8.4

Boarding

7.8

Food

7.3

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
KLM
7.8
Good
1,521 reviews
KLM
7.8
Good
1,521 reviews
Check prices

Entertainment

7.2

Comfort

7.7

Overall

7.8

Crew

8.4

Boarding

7.8

Food

7.3

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
Virgin Atlantic
7.5
Good
689 reviews
KLM
7.8
Good
1,521 reviews
Check prices

Entertainment

7.2

Comfort

7.7

Overall

7.8

Crew

8.4

Boarding

7.8

Food

7.3

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
Air France
7.4
Good
1,591 reviews
KLM
7.8
Good
1,521 reviews
Check prices

Entertainment

7.2

Comfort

7.7

Overall

7.8

Crew

8.4

Boarding

7.8

Food

7.3

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
JetBlue
7.2
Good
2,980 reviews
KLM
7.8
Good
1,521 reviews
Check prices

Entertainment

7.2

Comfort

7.7

Overall

7.8

Crew

8.4

Boarding

7.8

Food

7.3

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
British Airways
6.7
Okay
8,005 reviews
KLM
7.8
Good
1,521 reviews
Check prices

Entertainment

7.2

Comfort

7.7

Overall

7.8

Crew

8.4

Boarding

7.8

Food

7.3

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Boston. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Boston from London Heathrow?

    Most people fly into Boston Logan Intl (BOS) if they book a flight to Boston from London Heathrow. On average, Logan Intl has 36 inbound flights from London Heathrow per day from 16 airlines. Boston Logan Intl is conveniently located just 2.6 mi from Boston’s city center.

  • How long is the flight from London Heathrow Airport to Boston?

    There are many flights that can get you from London Heathrow Airport to Boston in 7h 30m. Fly via British Airways, Finnair, or United Airlines to get the fastest option. The distance between London Heathrow Airport and Boston is about 3254 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from London Heathrow Airport to Boston round-trip?

    Our cheapest airline available from London Heathrow Airport to Boston is Delta. Our recent data shows that you can find tickets from as low as £148 on this airline. Additional options worth looking into are Icelandair and Scandinavian Airlines, starting at £297 and £299 round-trip. Delta is priced at 69% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from London Heathrow Airport to Boston one-way?

    One-way options have recently been found by users for as low as £253 on JetBlue. Other airlines that offer cheap prices include TAP AIR PORTUGAL from £253 and Air Canada from £270 one-way.

  • What are the most reliable airlines from London Heathrow Airport to Boston?

    Consider Scandinavian Airlines (87%), KLM (86%) or Air France (85%) when booking your flight. These represent the most reliable airlines when flying from London Heathrow Airport to Boston.

  • What are the cheapest flights from London Heathrow Airport to Boston?

    The cheapest flight price from London Heathrow Airport to Boston is £350. On average you can expect to pay £1,062. The most popular route, (London Heathrow - Boston Logan Intl), can usually be booked for £363.

  • Can I find deals for flights from Heathrow to Boston that include hotel bookings?

    Yes. In addition to deals on Heathrow to Boston flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Heathrow to Boston?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Boston.

  • Can I find deals for business class flights from Heathrow to Boston?

    Yes. Cheapflights offers flight deals from Heathrow to Boston by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from London Heathrow Airport to Boston?

    Currently, September is the cheapest month in which you can book a flight from London Heathrow Airport to Boston (average of £405). Flying from London Heathrow Airport to Boston in June is currently the most expensive (average of £558). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
Burlington
Canton
Waltham
Warwick
Cambridge
Peabody
Somerville
Quincy
Chelmsford

Browse thousands of different options on Cheapflights for your next trip

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Fly from Heathrow to Boston on these airlines

Choose from the following airlines for your flight from Heathrow to Boston. Flights are based on user searches made on Cheapflights and were last updated on 25 May 2026.
Virgin Atlantic flights from London Heathrow to Boston Logan Intl
British Airways flights from London Heathrow to Boston Logan Intl
Finnair flights from London Heathrow to Boston Logan Intl

Top 10 airlines flying from Heathrow to Boston

Discover the top 10 airlines that operate flights from Heathrow to Boston. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 25 May 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest£148Average£557FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
IcelandairCheapest£294Average£433FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Scandinavian AirlinesCheapest£299Average£448FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
TAP AIR PORTUGALCheapest£305Average£393FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
LufthansaCheapest£313Average£392FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
JetBlueCheapest£320Average£465FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
Aer LingusCheapest£327Average£542FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
United AirlinesCheapest£332Average£384FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Virgin AtlanticCheapest£349Average£486FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Air CanadaCheapest£361Average£520FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Heathrow to Boston?

Cheapflights makes it easy to find Heathrow to Boston flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Heathrow to Boston?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Boston from Heathrow.

Can Cheapflights find flights from Heathrow to Boston with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Heathrow to Boston flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Heathrow to Boston become cheaper?

Yes! Start tracking prices for Heathrow to Boston flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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